/Engine/Source/Runtime/Core/Public/Containers/SortedMap.h
Returns the unique keys contained within this map.
The number of unique keys in the map.
template<typename Allocator> int32 GetKeys ( [TArray](API\Runtime\Core\Containers\TArray)< [KeyType](API\Runtime\Core\Containers\TSortedMap\KeyType), Allocator > & OutKeys ) const